CN213017778U - Valve seat - Google Patents
Valve seat Download PDFInfo
- Publication number
- CN213017778U CN213017778U CN202021742226.6U CN202021742226U CN213017778U CN 213017778 U CN213017778 U CN 213017778U CN 202021742226 U CN202021742226 U CN 202021742226U CN 213017778 U CN213017778 U CN 213017778U
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- turn
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- flanging
- annular
- annular portion
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Abstract
The utility model relates to a valve seat, including bush body and outer lane, outer lane and bush body fixed connection, the bush body include interior annular portion, the both ends lateral wall of interior annular portion extends respectively has first turn-ups portion, two first turn-ups portion parallel arrangement each other, the symmetry is provided with two first through-holes in interior annular portion, the outer lane includes outer annular portion, and the both ends lateral wall of outer annular portion extends respectively has second turn-ups portion, and outer annular portion overcoat is in interior annular portion, and second turn-ups portion is located the inboard of first turn-ups portion, the bush body still is provided with annular bulge at the tip position of first turn-ups portion, and annular bulge passes through the kink and is connected with first turn-ups portion, and the width of two annular bulges is greater than the width of two first turn-ups portions. By adopting the above scheme, the utility model overcomes the not enough of prior art existence provides a disk seat, and it need not to seal the operation through external seal circle when with the pipe connection, the installation of being convenient for.
Description
Technical Field
The utility model belongs to the technical field of the valve technique and specifically relates to a disk seat.
Background
The valve seat is a detachable surface part in the valve and is used for supporting the valve core at the fully closed position and forming a sealing pair, and the diameter of the valve seat is the maximum flow diameter of the valve. For example, the valve seat material of butterfly valve is very extensive, and all kinds of rubber, plastics, metal material all can regard as the valve seat material, for example: EPDM, NBR, NR, PTFE, PEEK, PFA, SS315, STELLITE, etc., and the properties of the liner determine the quality of the valve seat, so that the liner is required to be resistant to high temperature, corrosion and deformation.
The applicant is 201620854229.6 in chinese patent number, the application date is 2016 patent 8 month 9 days, it discloses a PTFE bush, this bush sets up in the disk seat, including the bush body that is the I-shaped, the bush body includes interior ring, be equipped with the mounting structure who is used for installing the valve plate on the interior ring, the both sides of interior ring are equipped with first edge, bush body periphery is equipped with the outer lane, the bush body links firmly with the outer lane, the outer lane includes outer ring, outer ring sets up in the periphery of interior ring, outer ring both sides are equipped with the third edge that turns over, the whole disk seat of bush body and outer lane constitution, the valve plate is installed on the disk seat, the disk seat is installed in the valve body. The technical scheme has the problems that because the two end surfaces of the lining body are relatively flat, when the valve body is connected with a pipeline, the end surface of the valve seat needs to be sealed by the sealing ring, so that the valve seat is complex to install.
Disclosure of Invention
The utility model overcomes prior art's is not enough, provides a disk seat, and it need not to seal the operation through external seal circle when with the pipe connection, the installation of being convenient for.
In order to realize the purpose, the utility model discloses a technical scheme is: the utility model provides a valve seat, includes bush body and outer lane, outer lane and bush body fixed connection, the bush body include interior annular portion, the both ends lateral wall of interior annular portion extends respectively has first turn-ups portion, two first turn-ups portion parallel arrangement each other, the symmetry is provided with two first through-holes in interior annular portion, the outer lane includes outer annular portion, and the both ends lateral wall of outer annular portion extends respectively has second turn-ups portion, and outer annular portion overcoat is in interior annular portion, and second turn-ups portion is located the inboard of first turn-ups portion, the bush body still is provided with annular bulge at the tip position of first turn-ups portion, and annular bulge passes through the kink and is connected with first turn-ups portion, and the width of two annular bulges is greater than the width of two first turn-ups portions.
Through adopting above-mentioned scheme, the outer lane is through mode and the bush body fixed connection of pasting, and when the disk seat setting in the valve body, because the both ends face department of bush body is provided with annular bulge respectively, when the valve body connecting tube, the flange terminal surface of pipeline can contradict with annular bulge, and annular bulge plays the effect of sealing washer this moment, need not to increase external seal circle, simple structure, the installation of being convenient for.
The utility model discloses a further setting is: the second flanging portion is provided with an inner flanging and an outer flanging, the outer flanging is flush with the side face of the annular protrusion portion, the inner flanging is arranged in an inverted triangle, and the distance between the outer ends of the two opposite inner flanging is smaller than that between the inner ends.
By adopting the scheme, the inner flanging can avoid the deformation of the bushing body, the shape design is reasonable, the outer flanging is flush with the side surface of the annular bulge, both the inner flanging and the outer flanging can play a role in sealing, and the structure is more attractive.
The utility model discloses a further setting is: the inner side surface of the inner circular ring-shaped part is provided with an inner boss in an extending mode corresponding to the first through hole, the first through hole penetrates through the inner boss, and the periphery of the first through hole is provided with a protruding surface on the end surface of the inner boss.
By adopting the scheme, the end part of the valve plate can be supported by the inner boss, and the end part of the valve plate can be provided with the flat end surface due to the fact that the raised surface is arranged on the inner boss, the end part of the valve plate is in good sealing fit with the raised surface of the inner boss, so that the end part of the valve plate does not need to be made into a spherical shape, the processing difficulty of the valve plate is reduced, the valve plate is convenient to install, the structure is simple, and the design is reasonable.
The utility model discloses a further setting is: the outer side face of the inner circular ring-shaped portion extends to form an outer boss corresponding to the first through hole, the inner end diameter of the outer boss is larger than the outer end diameter, the first through hole penetrates through the outer boss, and the outer circular ring-shaped portion is provided with a second through hole corresponding to the first through hole.
Through adopting above-mentioned scheme, the inner diameter of outer boss is greater than the outer end diameter, and when outer circle was pasted like this, the location of being convenient for to through setting up outer boss, increased the stroke of first through-hole, can avoid the liquid corrosion outer lane rubber of corrosivity like this, play the leak-proof effect, and the setting of second through-hole also is convenient for install the valve plate, simple structure, reasonable in design.
The utility model discloses a further setting is: the bushing body is made of polytetrafluoroethylene, and the outer ring is made of rubber.
By adopting the scheme, the polytetrafluoroethylene has the advantages of high temperature resistance, corrosion resistance, wear resistance and the like, and the outer ring is made of the ethylene propylene diene monomer rubber, so that a good sealing effect can be achieved between the valve seat and the valve body.
The present invention will be further described with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
fig. 2 is a schematic view of a first cross-sectional structure according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a second cross-sectional structure according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1 to 3, a valve seat includes a liner body 1 and an outer ring 2, the outer ring 2 is fixedly connected to the liner body 1 by means of adhesion, the liner body 1 includes an inner circular portion 11, first flanging portions 12 extend from both side walls of the inner circular portion 11 respectively, the two first flanging portions 12 are arranged in parallel, two first through holes 13 are symmetrically arranged on the inner circular portion 11, the outer ring 2 includes an outer circular portion 21, second flanging portions 22 extend from both side walls of the outer circular portion 21 respectively, the outer circular portion 21 is externally sleeved on the inner circular portion 11, the second flanging portions 22 are located inside the first flanging portions 12, an annular protrusion 14 is further arranged at an end position of the first flanging portion 12 of the liner body 1, the annular protrusion 14 is connected to the first flanging portions 12 through a bending portion 15, and widths of the two annular protrusions 14 are greater than widths of the two first flanging portions 12.
In this embodiment, the second flange portion 22 is provided with an inner flange 221 and an outer flange 222, the outer flange 222 is flush with the side surface of the annular protrusion 14, the inner flange 221 is arranged in an inverted triangle, and the distance between the outer ends of the two opposite inner flanges 221 is smaller than the distance between the inner ends.
In the present embodiment, the inner side surface of the inner circular ring portion 11 is extended with an inner boss 16 at a position corresponding to the first through hole 13, the first through hole 13 is disposed through the inner boss 16, and the end surface of the inner boss 16 is provided with an annular raised surface 161 at the periphery of the first through hole 13.
In this embodiment, the outer side surface of the inner circular ring portion 11 extends to form an outer boss 17 corresponding to the first through hole 13, the inner end diameter of the outer boss 17 is larger than the outer end diameter, the first through hole 13 is disposed through the outer boss 17, and the outer circular ring portion 21 is provided with a second through hole 23 corresponding to the first through hole 13.
In the present embodiment, the bush body 1 is made of polytetrafluoroethylene, and the outer ring 2 is made of ethylene propylene diene monomer.
The above embodiment is only one of the preferred embodiments of the present invention, and the general changes and substitutions performed by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a valve seat, includes bush body and outer lane, outer lane and bush body fixed connection, the bush body include interior annular portion, the both ends lateral wall of interior annular portion extends respectively has first turn-ups portion, two first turn-ups portion parallel arrangement each other, the symmetry is provided with two first through-holes in interior annular portion, the outer lane includes outer annular portion, and the both ends lateral wall of outer annular portion extends respectively has second turn-ups portion, and outer annular portion overcoat is in interior annular portion, and second turn-ups portion is located the inboard of first turn-ups portion, its characterized in that: the end part of the bushing body at the first flanging part is further provided with annular convex parts, the annular convex parts are connected with the first flanging part through bending parts, and the width of the two annular convex parts is larger than that of the two first flanging parts.
2. A valve seat according to claim 1, wherein: the second flanging portion is provided with an inner flanging and an outer flanging, the outer flanging is flush with the side face of the annular protrusion portion, the inner flanging is arranged in an inverted triangle, and the distance between the outer ends of the two opposite inner flanging is smaller than that between the inner ends.
3. A valve seat according to claim 1 or 2, wherein: the inner side surface of the inner circular ring-shaped part is provided with an inner boss in an extending mode corresponding to the first through hole, the first through hole penetrates through the inner boss, and the periphery of the first through hole is provided with a protruding surface on the end surface of the inner boss.
4. A valve seat according to claim 1 or 2, wherein: the outer side face of the inner circular ring-shaped portion extends to form an outer boss corresponding to the first through hole, the inner end diameter of the outer boss is larger than the outer end diameter, the first through hole penetrates through the outer boss, and the outer circular ring-shaped portion is provided with a second through hole corresponding to the first through hole.
5. A valve seat according to claim 1 or 2, wherein: the bushing body is made of polytetrafluoroethylene, and the outer ring is made of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021742226.6U CN213017778U (en) | 2020-08-19 | 2020-08-19 | Valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021742226.6U CN213017778U (en) | 2020-08-19 | 2020-08-19 | Valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213017778U true CN213017778U (en) | 2021-04-20 |
Family
ID=75468658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021742226.6U Active CN213017778U (en) | 2020-08-19 | 2020-08-19 | Valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213017778U (en) |
-
2020
- 2020-08-19 CN CN202021742226.6U patent/CN213017778U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |